Visas and eight banks ("PNC Bank, SunTrust Bank, U.S. Bank, Wachovia, and Wells Fargo in the United States, and Royal Bank of Canada, TD Bank Financial Group, and Vancity in Canada") are testing real-time SMS notifications whenever your card makes one of a few types of transactions. The 2000 pilot beta customers can pick alerts for ATM cash withdrawals, internet or telephone charge, an out-of-country charge or a charge that's over a pre-defined amount. You can choose to have these alerts go to your phone or your email (if you're cheap like us and don't want to burn up all your messages), which you can then immediately use to alert Visa to any fraudulent activity. Great idea or greatest idea? You be the judge. [Slashphone]

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